Boe Technology Group Co., Ltd.

Chengdu Boe Optoelectronics Technology Co., Ltd.

Lucent Technologies Inc.

National Institute of Metrology

Qing He

Zhiliang Jiang

Qingqing Yan

Xiangnan Pan

Ming Hu

Haijun Qiu

Tianyi Cheng

Jianpeng Wu

Ziyang Yu

Pan Zhao

Wenbo Chen

Ge Wang

Quanyong Gu

Xiaomin Yuan

Yigang Cai

Yang Bai

Min Liu

Zheng Li

Cong Liu

Mengqi Wang

Qian Xu

Min Chen

Long Ma

John Brian Reid

Jay Z Zhao

Yile Enoch Wang

Ashish Trivedi

Zhong Hua Zhang

Yun Feng Lu

Zaiyong Long

A display panel and a display apparatus. The display panel includes: a base substrate with a display region including a first display region, and the display region has a first frame and a second frame opposite to each other, a through hole, penetrating through the base substrate, wherein a distance between a center of the through hole and the first frame is smaller than a distance between the center of the through hole and the second frame; and a plurality of spacers, located on a side of the base substrate, wherein the first display region includes a region between the through hole and the first frame, and a distribution density of the spacers in the first display region is larger than a distribution density of the spacers between the through hole and the second frame.

Display panel with a through hole and display regions having different distribution densities of spacers, and display apparatus

A driving circuit includes a driving signal generation circuit, a gating circuit, an output control circuit and an output circuit; the driving signal generation circuit generates and outputs the Nth stage of driving signal; the gating circuit controls to write the gating input signal into the first node; the output control circuit performs a NAND operation on the Nth stage of driving signal and the potential of the second terminal of the output control circuit to obtain a first output signal; the output circuit inverts the first output signal to obtain and provide an output driving signal through the output driving terminal; N is a positive integer.

Driving circuit, driving method, driving module and display device

A driving circuit, a driving method, a driving module and a display device are provided. The driving circuit includes a driving signal generation circuit, a gating circuit, an output control circuit, an output circuit, a voltage control circuit and a third control node control circuit. The third control node control circuit is electrically connected to the first node and the third control node respectively, and is configured to control the potential of the third control node according to the potential of the first node.

A touch display panel includes: a base substrate, including a display area and a peripheral area on at least one side of the display area; pixel units in the display area, including a pixel driving circuit and a light-emitting element electrically connected to each other; touch electrodes in the display area; a touch wire electrically connected to at least one touch electrode, at least part of which extends to the peripheral area; a touch lead in the peripheral area, where the touch lead and the touch wire are in different conductive layers; and a contact groove in the peripheral area, where the touch wire and the touch lead are in contact in the contact groove, where the touch wire has a first touch wire portion in the contact groove, and the first touch wire portion extends obliquely with respect to an upper surface of the base substrate.

Touch display panel and display device

Disclosed are a laser heterodyne interferometric apparatus based on plane mirror reflection and a corresponding method. The interferometric apparatus includes a dual-frequency laser, a first photoelectric receiver, a second photoelectric receiver, a first polarizing beamsplitter, a second polarizing beamsplitter, a third polarizing beamsplitter, a quarter-wave plate, a right angle mirror, an optical compensator, and a measured plane mirror. The method performs heterodyne interferometry with two spatially separated beams of different frequencies and balances the optical path lengths of the measurement beam and the reference beam with the optical compensator. In the method, the measured plane mirror moves back and forth along the propagation direction of the input beams. The disclosure suppresses optical non-linearity and optical thermal drift in laser heterodyne interferometry, simplifies the optical path structure, and improves accuracy of laser heterodyne interferometry.

Laser heterodyne interferometric apparatus and method based on plane mirror reflection

This invention relates to a method and apparatus for charging and billing of Circuit Switch, Packet Switch, and IP Multimedia Subsystems in third generation telecommunication systems. The charges for a call are computed by a rating engine, a software system comprising data tables and a program for calculating charges from the parameters of the call, such as the calling and called numbers, the length of the call, and special charge items such as priority service. For calls whose billing cannot be deferred, referred to as on-line billing calls, the rating engine is accessed immediately. For calls whose billing can be deferred, referred to as off-line billing calls, the rating engine performs its function only when the rating engine is not busy rating on-line billing calls, for example, during periods outside the busy hour. Advantageously, only a single rating engine is required, and the capacity of that single rating engine is determined only by the busy-hour volume of on-line billing calls.

Pre-biller capability in enhanced charging collection function (CCF) applications

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Beijing, China

Qing He